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The source number estimation is an important issue in space spectrum estimation. However, the performance of traditional estimation algorithms will degrade severely when applied into colored noise. To overcome this problem, a new method based on power-inversion and adaptive threshold is proposed. In the proposed method, the power-inversion algorithm is firstly applied to form array beam pattern with...
The eigenvalue-based minimum description length (MDL) method for source number estimation is widely applied in practical scenarios. However, the performance of the MDL method degrades significantly when it is applied to an asymmetrical subarray situation due to the inequality of the noise power of each channel. Therefore, an improved MDL method for subarray level is proposed by normalising noise power...
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